I have a question about the following sentence:
"Filium exspectare oportet dum redeat pater."
Is there ambiguity here? In relation to "exspectare," is it possible to take "filium" either as the object or as a subject accusative? The first option would give "It is proper to await the son . . ." and the second would give "It is proper for the son to wait . . ." Are both of these possible? Or would a dative of reference be the more likely way to express "It is proper for the son to wait . . ." (i.e., "Filio exspectare oportet . . .")?